*{
   margin: 0;
   padding: 0;
}
body{margin:0;
   padding: 0;
    font-family: "微软雅黑","宋体",Arial, Helvetica, sans-serif;
    font-size:12px;line-height:1;
   }
h1,h2,h3,h4,h5,h6{margin:0;
                 font-size:100%;
                 font-weight:normal; 
                }
ul,ol{list-style:none;
     margin:0;
     padding:0;
    }
p,dl,dd{margin:0;}
img{vertical-align: middle;
   border:none;
   }
a{text-decoration: none;
 color:#333;
 }
strong,b{font-weight: normal;}
i,em{font-style:normal;}
input{margin:0;
     padding:0;
     border:none; 
     font-family:inherit;
     }
textarea{resize:none;/* 禁止用户重置元素大小 */
        overflow:auto;
        font-family: inherit;
        }
li{
  list-style: none;
  margin: 0px;
  padding: 0px;
}
.clearfix::after{
   content: '';
   display: block;
   clear: both;
}